#include <stdio.h>
#include "homework4.h"

int my_money(int x);

int main(int argc,char *argv[])
{
	int a;//a为天数
	printf("pls input few days:");
	scanf("%d",&a);
	int ret = my_money(a);
	printf("ret = %d\n",ret);
	
	return 0;
}